Is the question "finding a CPU driver"? If so the CPU doesn't really have a driver per se but the chipset driver should fix this for you, for exsample my Media machine's AMD driver comes in the form of Nvidia Nforce driver for 8200a chipsets and my gaming rig that Runs the A10 come in the A85x driver from AMD's website.

So find what northbridge your board runs and the manufacturer should provide support for it.